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"I decreased my 10-mile cycling time from 33 minutes down to 24 minutes,

A 27% IMPROVEMENT." Kevin Stout-Cyclist

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"I saw a 41% Increase in Strength & Endurance after using STEALTH for 8 weeks."

Jamie Mueller - NFL Legends

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"I saw an 6% improvement in my VO2 Max in just 4 weeks."

Ken Miller - PhD Researcher | Power Athlete

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WORLD's 1st Dual Resistance Breathing Device

designed for use during Exercise for Maximal Gains.

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Biotech Executive | Power Athlete

My VO2 max improved approximately 6% in just four weeks, damn good. 

Overall, I've noted lower resting HR, increased lung capacity, with generally longer, deeper breaths while normal breathing, likely activating the parasympathetic nervous symptom resulting in a lot calmer mood, less cortisol, and less tiredness.


Ken Miller PhD

Retired R.N Looking to Improve Overall Health & Wellness

I am 65 years old female non-athlete just trying to improve my overall health.

After starting out using this device
2 or 3 days a week at a level 1 to get used to it; I now use it 4 to 5 days a week at level 4 when I do my light strength and flexibility workout.

It is incredible how quickly the body adapts. I now can take and hold much deeper breaths and can easily walk hills and steps that previously would make me winded.

I definitely would recommend MAXIMUS to anyone looking to improve overall health & well-being.

Mary Camerino

Business Executive | Former Pro Athlete

After eight weeks of using MAXIMUS, my strength increased by 40% over baseline across all exercises.

Focused breathing work during my strength and endurance training there was a significant impact on my quality of life, including the following:

-Better sleep

-Lower blood pressure

-Lower Stress

Paul Howe - Biotech Executive

Jersey Mike's Executive

I increased my max watts on Peloton from 457 to 510. My strength increased on Incline bench press +62%, and my stamina increased 39% on pull-ups."

"As a certified strength and conditioning coach, I was skeptical about the MAXIMUS at first; however, the premise of how the device could improve performance made sense to me."

I see this device truly setting new performance standards across all sports.

Keith Hetling


I’ve competed at the highest levels of endurance racing early in my life. I have also tried many devices in my years. I’ve worn backpacks designed to simulate altitude training, slept in oxygen tents, and tried every methodology. 

This product shocked me! I decreased my 10-mile road bike time from 33:20 minutes to 24 minutes; that's A BIG IMPROVEMENT of over 9 minutes; MAXIMUS is FOR REAL! 

The beauty behind the science of
MAXIMUS is that it allowed me to develop more significant cardiovascular
strength while putting less stress on the other parts of my body.

Kevin Stout - Business Executive


As a former NHL Strength & Conditioning Coach, I recommend MAXIMUS for on-ice and off-ice HIIT.

Sprinting or biking at 30-sec intervals at maximum speed, followed by 60 seconds of low-intensity jogging or cycling for 8-10 reps, is a great starting point to improve the lactate threshold. The lactate threshold will improve by using this device. The higher your level of conditioning, the harder it is to get your heart rate up.   

Practice should always be more complex than game-day. Using MAXIMUS in training will make your players much more effective when breathing without airflow restrictions during game situations.

Chris Reichart NHL Strength Coach 1994-2005


While I cannot be sure that MAXIMUS will add years to my life, I can assure you that it has added life to my years.

I shaved 30% off my cycling time in the 2.5 miles I typically sprinted through. I've also managed to Increase my strength by +27%by on average across all exercises.

Some non-fitness-related benefits I have experienced from using a MAXIMUS device include Improved concentration, better sleep, improved memory, and an overall sense of well-being g.

A must-have If you are at all fitness-savvy.

Sal Goldberg Retired Executive

Business Executive - Former NFL Player

Over 60 weeks now using MAXIMUS, my strength has increased by over 100% on average, and my endurance increased by 50%.

Resistance to breathing deeply during exercise is a force multiplier for fitness improvements and stress management.

I have benefited significantly from the MAXIMUS device by increasing my strength and endurance, VO2 Max, and Lactate Threshold while learning to breathe diaphragmatically for optimal health, fitness, and overall well-being.

Jamie Mueller

I am thrilled with the results I receive from training with the MAXIMUS.

MAXIMUS has helped me better understand the importance of strengthening your cardio-pulmonary system for overall health.

My strength and endurance are better than ever.

MAXIMUS for better Health & Wellness.

Thank you!!

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